Diamond City: Idle Tycoon

In-app purchases
4.3
21.6K reviews
1M+
Downloads
Content rating
PEGI 3
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About this game

Start with a small town and transform it into a bustling futuristic city in Diamond City: Idle Tycoon! Develop your city by building and upgrading amenities, improving transportation systems, and attracting visitors with innovative marketing campaigns. Manage resources wisely to keep your city running smoothly and ensure that visitors have an unforgettable experience.

In this captivating idle game, take important business decisions to grow your city. Unlock new areas and create a dazzling array of attractions, from futuristic buildings to unique landmarks. Use your tycoon skills to optimize visitor flow, reduce wait times, and increase satisfaction.

Enjoy a relaxing yet engaging gameplay experience with stunning 3D graphics and smooth animations. With every new level, face exciting challenges and unlock new features to expand your city. Whether you're a fan of management games or idle simulators, Diamond City: Idle Tycoon offers endless fun and strategic depth.

– Create and manage a futuristic city with unique amenities.
– Develop and upgrade your city with important business decisions.
– Enjoy a variety of tasks and challenges.
– High-quality 3D graphics and animations.
– Engage in strategic gameplay to attract more visitors.
– Use power-ups and marketing campaigns to boost your city's growth.
– Compete with other players and rise to the top of the leaderboard.
– Save your progress to the cloud and continue on any device.
Updated on
Mar 20, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Financial info, App activity and 2 others
This app may collect these data types
Personal info, Financial info and 2 others
Data isn’t encrypted
You can request that data be deleted

Ratings and reviews

4.3
20.7K reviews
Karen Mak
May 31, 2025
Very misleading game. Starts off cute and like you are progressing but each time you reach a new city, it resets ALL of your money and you have to start over. You can only build new buildings in a new city so it defeats the purpose of playing. Wow, it sucked my time away. Uninstalling. Wasted my time and couldn't even get to the level to get paid.
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MTAG PUBLISHING LTD
June 2, 2025
Dear player, We are sorry that you did not like the game. 😔 But we are actively developing the project, and a major update will be released soon. Be sure to try it out! 🤩
Laura
March 5, 2023
The game play is good with a nice pace of progression through the game provided that you pay not to have ads. The problem is that the game freezes, meaning that I have to force close it and reload the game constantly, making it pretty much unplayable at this point. UPDATE: I emailed as requested and nothing happened. Shouldn't need to email them anyway. Stop expecting people to pay if your not going to debug the game.
26 people found this review helpful
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MTAG PUBLISHING LTD
March 6, 2023
Good afternoon Dear player, our team has responded to your letter. Please check your spam folder.
Simon Cornwell
March 26, 2023
Unplayable unless you spend money to allow the game to play when turned off. Otherwise you need to leave the game running for hours on end to gain enough money to build more buildings. I did this and still cant move forward in the game. Nothing to show what you need to do next. Stuck now. Also not going to spend any money on a game in the first few weeks of starting playing it. Going to un install the game now.
26 people found this review helpful
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MTAG PUBLISHING LTD
March 27, 2023
Good afternoon Write to us at support@mysterytag.com about this problem in more detail and we will help you!

What’s new

• Fixed some technical and functional bugs
• Corrected in-game balance